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RE: [PATCH] mac80211: Increase uapsd max SP frames number

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> 
> On Tue, Nov 4, 2014 at 2:10 PM, Emmanuel Grumbach
> <emmanuel.grumbach@xxxxxxxxx> wrote:
> > From: Andrei Otcheretianski <andrei.otcheretianski@xxxxxxxxx>
> >
> > Deliver up to 128 frames during SP instead of 8 if unlimited max SP is
> > specified during association.
> >
> > Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@xxxxxxxxx>
> > Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@xxxxxxxxx>
> > ---
> >  net/mac80211/sta_info.c | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index
> > de494df..3352741 100644
> > --- a/net/mac80211/sta_info.c
> > +++ b/net/mac80211/sta_info.c
> > @@ -1531,7 +1531,7 @@ void ieee80211_sta_ps_deliver_uapsd(struct
> sta_info *sta)
> >                 break;
> >         case 0:
> >                 /* XXX: what is a good value? */
> > -               n_frames = 8;
> > +               n_frames = 128;
> >                 break;
> >         }
> What is criteria for deciding the threshold?
> Any specific use case for 128?

Well - this is why this commit doesn't remove the TODO :)
The reason for this change is a certification issue in WMM-PS with P2P GO (NoA cutting short a SP).
I guess the proper way to handle that is to make it configurable.
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